Los Angeles -LRB- CNN -RRB- -- Chris Brown must stay locked up in the Los Angeles County jail for at least another week while his lawyer negotiates with the prosecutor about his probation violation , a judge said Thursday .

Brown attended a hearing Thursday wearing an orange jail suit , just hours after a cross-country trip from Washington to Los Angeles on the federal government 's inmate transport system , informally known as `` Con Air . ''

`` He 's doing remarkably well under the circumstances , '' Brown lawyer Mark Geragos told CNN . `` It 's a challenging situation to be in . ''

Geragos and Assistant District Attorney Mary Murray agreed to hold talks over the next week concerning Brown possibly admitting that he violated his probation . If that happens , it will be announced at a hearing next Friday . Otherwise , the judge will set a date for a trial on his probation revocation .

`` I 'm hoping we get it resolved and we get it resolved quickly , '' Geragos said after the hearing .

Geragos said he would also file a motion to have Brown released from jail , which would be considered at the May 9 hearing .

Brown , who turns 25 next Monday , spent most of the past week traveling back to Los Angeles following a delay in the start of his trial on a misdemeanor assault charge in Washington .

U.S. Marshals , who took Brown from the Los Angeles County jail for extradition to Washington four weeks ago , handed him back to Los Angeles Sheriff 's deputies just hours before Thursday 's hearing , according to Deputy U.S. Marshal Laura Vegas .

Brown 's probation for the 2009 beating of ex-girlfriend Rihanna Fenty was revoked after his Washington arrest . He 's spent the past six weeks in custody and previous five months in court-ordered rehab .

The prosecutor said last week that she would `` strenuously object '' to Brown being released because it appears likely Brown will be found guilty of the assault charge in Washington . Assistant District Attorney Mary Murray argued the only change since Brown was jailed in March is that his case has `` gotten worse . '' The Washington judge who found his bodyguard guilty in the assault case also concluded that Brown was `` the initial aggressor '' in the incident , Murray said .

A Los Angeles judge refused a request last week to free the singer from custody so he could make his own way back from Washington .

He and bodyguard Christopher Hollosy were arrested on assault charges in Washington for allegedly beating a man who tried to take a photo of Brown last October .

The arrest led to a revocation of Brown 's probation , but he was allowed to enter a rehab program instead of going to jail . He was ordered to jail last month when he was kicked out of the rehab program for rules violations .

Planes , chains and automobiles : Chris Brown 's miserable trip to trial

`` I think it 's a little over the top to have him in custody on this misdemeanor when everybody saw the bodyguard 's trial and which was nothing more than a bloody nose , '' Brown lawyer Mark Geragos told reporters in Washington last week . `` And you have got the bodyguard who was convicted and who readily admitted he was the one who did the punching.Â So all of this is much ado about nothing . ''

Chris Brown 's freedom at stake with 2 cases

The delay in Brown 's Washington trial came after prosecutors refused to grant immunity to Hollosy so he could testify without jeopardizing his own case . On Monday , Hollosy was found guilty of assaulting a man on a Washington sidewalk before Brown 's trial was to begin in the case .

The prosecutors cited Hollosy 's refusal to talk to them about his testimony as a major reason for the decision not to grant immunity . Their motion also said they suspected he might lie in his testimony to help Brown .

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NEW : `` He 's doing remarkably well under the circumstances , '' Brown lawyer says

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Judge : Chris Brown must stay in jail for at least another week

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Brown 's October DC arrest triggered 5 months rehab , 7 weeks in jail

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He turns 25 next Monday